Hydraulic Conditions in Foul Water Stacks

IF 1.3 Q3 ENGINEERING, MECHANICAL

PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING Pub Date : 2023-03-09 DOI:10.3311/ppme.19904

Martin Sokol, J. Peráčková

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引用次数: 0

Abstract

Foul water stacks are a separate chapter in the design of sanitary installations, especially in high-rise buildings. The problematic part is the complicated hydraulic conditions in the stacks, which lead to high values of negative pressure and overpressure. Exceeding the maximum negative pressure values leads to the extraction of water from the traps, which causes the spread of annoying smells in the interior. Another problematic part is the high hydraulic jumps caused by a sudden change in the velocity of water in the stack, especially above the change in the direction of stacks. Such sudden changes in velocity cause excessive vibrations and noise that spread from stacks to the building structures and surrounding areas. The contribution deals with the issue of hydraulic conditions in the flow of foul water in stacks, assessment of the maximum values of negative pressure and overpressure, technical solutions that ensure optimal water flow in the drainage systems of buildings. Based on measurements that were performed in companies abroad, the authors prepared graphs of pressure fluctuations in stacks for selected boundary conditions.

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污水烟囱的水力条件

污水堆是卫生设施设计的一个单独章节，特别是在高层建筑中。问题的部分是烟囱内复杂的水力条件，导致了高的负压和超压值。超过最大负压值会导致水从疏水阀中被抽走，从而导致令人讨厌的气味在室内传播。另一个有问题的部分是由于水的速度的突然变化引起的高水力跳跃，特别是在堆栈的方向变化之上。这种速度的突然变化会引起过度的振动和噪音，从烟囱传播到建筑结构和周围地区。该贡献涉及污水在烟囱中流动的水力条件问题，负压和超压最大值的评估，确保建筑物排水系统中最佳水流的技术解决方案。根据在国外公司进行的测量，作者在选定的边界条件下编制了堆栈压力波动图。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

PERIODICA POLYTECHNICA-MECHANICAL ENGINEERING ENGINEERING, MECHANICAL-

CiteScore

2.80

自引率

7.70%

发文量

审稿时长

20 weeks

期刊介绍： Periodica Polytechnica is a publisher of the Budapest University of Technology and Economics. It publishes seven international journals (Architecture, Chemical Engineering, Civil Engineering, Electrical Engineering, Mechanical Engineering, Social and Management Sciences, Transportation Engineering). The journals have free electronic versions.